“A rectangular epoxy tooling block sitting on a woodworking bench. The block has a smooth, uniform surface and sharp machine-cut edges, showing its use as a rigid fixture material for CNC machining, prototyping, and precision modeling. Tools and wood shavings surround the block in a workshop setting. Text highlighting that this is ideal for CNC practice cuts”

Epoxy Tooling Block - 50x50x200mm | CNC Machining Stock for Prototyping

35x35x100mm
$29.00
$29.00
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“A rectangular epoxy tooling block sitting on a woodworking bench. The block has a smooth, uniform surface and sharp machine-cut edges, showing its use as a rigid fixture material for CNC machining, prototyping, and precision modeling. Tools and wood shavings surround the block in a workshop setting. Text highlighting that this is ideal for CNC practice cuts”
  • “A rectangular epoxy tooling block sitting on a woodworking bench. The block has a smooth, uniform surface and sharp machine-cut edges, showing its use as a rigid fixture material for CNC machining, prototyping, and precision modeling. Tools and wood shavings surround the block in a workshop setting. Text highlighting that this is ideal for CNC practice cuts”
  • “Three epoxy tooling blocks arranged on a bench, each with clean, flat faces and square edges. The blocks vary in orientation to show dimensional accuracy and material density. These machinable epoxy slabs are used for CNC routing, fixturing, custom jigs, molds, and precision prototyping. Woodworking tools are visible in the background.”
  • White CNC-carved bust mounted in a rotary fixture on a dark machine bed, with large text reading “Fabrication Services Available.” Promotes Aetherium Innovations custom fabrication, CNC machining, prototyping, and maker service work for parts, fixtures, and specialty projects.
  • White CNC-carved bust mounted in a rotary fixture on a dark machine bed, with large text reading “Fabrication Services Available.” Promotes Aetherium Innovations custom fabrication, CNC machining, prototyping, and maker service work for parts, fixtures, and specialty projects.
  • “A rectangular epoxy tooling block sitting on a woodworking bench. The block has a smooth, uniform surface and sharp machine-cut edges, showing its use as a rigid fixture material for CNC machining, prototyping, and precision modeling. Tools and wood shavings surround the block in a workshop setting.”
  • “A rectangular epoxy tooling block sitting on a woodworking bench. The block has a smooth, uniform surface and sharp machine-cut edges, showing its use as a rigid fixture material for CNC machining, prototyping, and precision modeling. Tools and wood shavings surround the block in a workshop setting. Text highlighting that this is ideal for CNC practice cuts”
  • “Three epoxy tooling blocks arranged on a bench, each with clean, flat faces and square edges. The blocks vary in orientation to show dimensional accuracy and material density. These machinable epoxy slabs are used for CNC routing, fixturing, custom jigs, molds, and precision prototyping. Woodworking tools are visible in the background.”
  • White CNC-carved bust mounted in a rotary fixture on a dark machine bed, with large text reading “Fabrication Services Available.” Promotes Aetherium Innovations custom fabrication, CNC machining, prototyping, and maker service work for parts, fixtures, and specialty projects.
  • White CNC-carved bust mounted in a rotary fixture on a dark machine bed, with large text reading “Fabrication Services Available.” Promotes Aetherium Innovations custom fabrication, CNC machining, prototyping, and maker service work for parts, fixtures, and specialty projects.
  • “A rectangular epoxy tooling block sitting on a woodworking bench. The block has a smooth, uniform surface and sharp machine-cut edges, showing its use as a rigid fixture material for CNC machining, prototyping, and precision modeling. Tools and wood shavings surround the block in a workshop setting.”
Epoxy Tooling Block - 50x50x200mm | CNC Machining Stock for Prototyping

Epoxy Tooling Block - 50x50x200mm | CNC Machining Stock for Prototyping

$29.00
$29.00
Shipping calculated at checkout.
Billet size

In stock: 1-3 business days

Epoxy tooling board sits in the space between wax and aluminum — dense enough to machine like metal, forgiving enough to shape like a polymer.
Stable under heat, low in porosity, and easy to finish, it’s become a standard across small-batch manufacturing and advanced prototyping.

Formed from high-density epoxy resin, each block is uniform in structure and consistent in behavior. It cuts predictably, holds detail, and resists chipping under both roughing and finishing passes.

For makers and engineers, it’s a bridge material — perfect for testing toolpaths, validating part geometry, or building fixturing before committing to more expensive materials such as aluminum or carbon fiber.

Ships from the PNW, USA

Every order supports Aetherium Innovations and our mission to develop tools and technologies that lower costs and learning barriers in the skilled art trades.

Bench-tested

Modular by design

Direct builder support

Pacific Northwest built

Build & Support

Aetherium products are developed around real workshop and field workflows. If you need dimensions, compatibility guidance, replacement components, or help adapting this product to your setup, contact the workshop before ordering.
Shipping & Returns

The production estimate shown near the purchase button is the current working lead time for this item. Shipping is calculated at checkout.

If an order arrives damaged, does not match what you received approval for, or you need to request a return, contact us with the order number and photos when applicable. We will review the situation directly and help determine the right next step.

Complete the system

Why Aetherium

Built like someone has to use it.

We design around real workflows, direct feedback, and the belief that a good tool should expand what its owner can do.

Bench-testedDeveloped around real workshop problems, not trend forecasts.
Small-batchProduced deliberately with clear lead times and direct accountability.
AdaptableModular, repair-minded systems designed to evolve with the work.
Direct supportCompatibility question? You can talk to the person who built it.
Unsure whether this fits your setup?Send the workshop a photo or a short description before you order.
Ask a compatibility question